java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/reducercommutativity/rangesum05_false-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-5f7ec6e-m [2018-01-31 08:56:09,646 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-31 08:56:09,647 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-31 08:56:09,660 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-31 08:56:09,660 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-31 08:56:09,660 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-31 08:56:09,661 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-31 08:56:09,664 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-31 08:56:09,665 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-31 08:56:09,665 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-31 08:56:09,666 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-31 08:56:09,666 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-31 08:56:09,667 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-31 08:56:09,668 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-31 08:56:09,668 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-31 08:56:09,670 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-31 08:56:09,670 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-31 08:56:09,672 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-31 08:56:09,673 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-31 08:56:09,674 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-31 08:56:09,675 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-31 08:56:09,675 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-31 08:56:09,675 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-31 08:56:09,676 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-31 08:56:09,676 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-31 08:56:09,677 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-31 08:56:09,677 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-31 08:56:09,685 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-31 08:56:09,685 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-31 08:56:09,686 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-31 08:56:09,686 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-31 08:56:09,686 INFO L98 SettingsManager]: Beginning loading settings from /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-31 08:56:09,695 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-31 08:56:09,695 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-31 08:56:09,695 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-31 08:56:09,695 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-31 08:56:09,695 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-31 08:56:09,696 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-31 08:56:09,696 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-31 08:56:09,696 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-31 08:56:09,696 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-31 08:56:09,696 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-31 08:56:09,696 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-31 08:56:09,696 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-31 08:56:09,696 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-31 08:56:09,696 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-31 08:56:09,697 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-31 08:56:09,697 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-31 08:56:09,697 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-31 08:56:09,697 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-31 08:56:09,697 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-31 08:56:09,697 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-31 08:56:09,697 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-31 08:56:09,697 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-31 08:56:09,698 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-31 08:56:09,698 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-31 08:56:09,698 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-31 08:56:09,698 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-31 08:56:09,698 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-31 08:56:09,698 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-31 08:56:09,698 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-31 08:56:09,698 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-31 08:56:09,698 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-31 08:56:09,699 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-31 08:56:09,699 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-31 08:56:09,699 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-31 08:56:09,725 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-31 08:56:09,733 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-31 08:56:09,736 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-31 08:56:09,736 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-31 08:56:09,737 INFO L276 PluginConnector]: CDTParser initialized [2018-01-31 08:56:09,737 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/rangesum05_false-unreach-call_true-termination.i [2018-01-31 08:56:09,812 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-31 08:56:09,812 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-31 08:56:09,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-31 08:56:09,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-31 08:56:09,819 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-31 08:56:09,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 08:56:09" (1/1) ... [2018-01-31 08:56:09,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22eb859a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:56:09, skipping insertion in model container [2018-01-31 08:56:09,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 08:56:09" (1/1) ... [2018-01-31 08:56:09,831 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 08:56:09,841 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 08:56:09,925 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 08:56:09,940 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 08:56:09,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:56:09 WrapperNode [2018-01-31 08:56:09,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-31 08:56:09,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-31 08:56:09,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-31 08:56:09,945 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-31 08:56:09,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:56:09" (1/1) ... [2018-01-31 08:56:09,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:56:09" (1/1) ... [2018-01-31 08:56:09,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:56:09" (1/1) ... [2018-01-31 08:56:09,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:56:09" (1/1) ... [2018-01-31 08:56:09,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:56:09" (1/1) ... [2018-01-31 08:56:09,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:56:09" (1/1) ... [2018-01-31 08:56:09,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:56:09" (1/1) ... [2018-01-31 08:56:09,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-31 08:56:09,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-31 08:56:09,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-31 08:56:09,964 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-31 08:56:09,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:56:09" (1/1) ... No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-31 08:56:10,016 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-31 08:56:10,017 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-31 08:56:10,017 INFO L136 BoogieDeclarations]: Found implementation of procedure init_nondet [2018-01-31 08:56:10,017 INFO L136 BoogieDeclarations]: Found implementation of procedure rangesum [2018-01-31 08:56:10,017 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-31 08:56:10,017 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-31 08:56:10,017 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-31 08:56:10,017 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-31 08:56:10,019 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-31 08:56:10,019 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-31 08:56:10,019 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-31 08:56:10,019 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-31 08:56:10,019 INFO L128 BoogieDeclarations]: Found specification of procedure init_nondet [2018-01-31 08:56:10,019 INFO L128 BoogieDeclarations]: Found specification of procedure rangesum [2018-01-31 08:56:10,019 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-31 08:56:10,019 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-31 08:56:10,020 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-31 08:56:10,474 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-31 08:56:10,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:56:10 BoogieIcfgContainer [2018-01-31 08:56:10,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-31 08:56:10,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-31 08:56:10,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-31 08:56:10,477 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-31 08:56:10,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 08:56:09" (1/3) ... [2018-01-31 08:56:10,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c24b212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 08:56:10, skipping insertion in model container [2018-01-31 08:56:10,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:56:09" (2/3) ... [2018-01-31 08:56:10,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c24b212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 08:56:10, skipping insertion in model container [2018-01-31 08:56:10,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:56:10" (3/3) ... [2018-01-31 08:56:10,478 INFO L107 eAbstractionObserver]: Analyzing ICFG rangesum05_false-unreach-call_true-termination.i [2018-01-31 08:56:10,483 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-31 08:56:10,488 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-01-31 08:56:10,512 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-31 08:56:10,512 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-31 08:56:10,513 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-31 08:56:10,513 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-31 08:56:10,513 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-31 08:56:10,513 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-31 08:56:10,513 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-31 08:56:10,513 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-31 08:56:10,513 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-31 08:56:10,523 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2018-01-31 08:56:10,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-01-31 08:56:10,529 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:56:10,530 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:56:10,530 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0AssertViolation]=== [2018-01-31 08:56:10,532 INFO L82 PathProgramCache]: Analyzing trace with hash 540696337, now seen corresponding path program 1 times [2018-01-31 08:56:10,533 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:56:10,534 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:56:10,562 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:10,562 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:56:10,562 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:56:10,593 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 08:56:10,610 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2018-01-31 08:56:10,610 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-31 08:56:10,610 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-31 08:56:10,625 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:56:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:56:10,673 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 08:56:10,694 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-01-31 08:56:10,711 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 08:56:10,711 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-31 08:56:10,713 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-31 08:56:10,720 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-31 08:56:10,720 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-31 08:56:10,721 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 2 states. [2018-01-31 08:56:10,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:56:10,738 INFO L93 Difference]: Finished difference Result 157 states and 178 transitions. [2018-01-31 08:56:10,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-31 08:56:10,739 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 78 [2018-01-31 08:56:10,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:56:10,744 INFO L225 Difference]: With dead ends: 157 [2018-01-31 08:56:10,744 INFO L226 Difference]: Without dead ends: 81 [2018-01-31 08:56:10,746 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-31 08:56:10,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-01-31 08:56:10,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-01-31 08:56:10,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-01-31 08:56:10,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 87 transitions. [2018-01-31 08:56:10,831 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 87 transitions. Word has length 78 [2018-01-31 08:56:10,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:56:10,831 INFO L432 AbstractCegarLoop]: Abstraction has 81 states and 87 transitions. [2018-01-31 08:56:10,831 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-31 08:56:10,831 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions. [2018-01-31 08:56:10,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-01-31 08:56:10,833 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:56:10,833 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:56:10,833 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0AssertViolation]=== [2018-01-31 08:56:10,833 INFO L82 PathProgramCache]: Analyzing trace with hash -199678615, now seen corresponding path program 1 times [2018-01-31 08:56:10,833 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:56:10,834 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:56:10,834 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:10,834 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:56:10,834 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:56:10,844 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 08:56:10,868 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2018-01-31 08:56:10,868 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-31 08:56:10,868 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-31 08:56:10,895 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:56:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:56:10,936 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 08:56:10,981 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-01-31 08:56:10,997 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 08:56:10,998 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-31 08:56:10,998 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-31 08:56:10,998 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-31 08:56:10,999 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-31 08:56:10,999 INFO L87 Difference]: Start difference. First operand 81 states and 87 transitions. Second operand 3 states. [2018-01-31 08:56:11,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:56:11,048 INFO L93 Difference]: Finished difference Result 150 states and 162 transitions. [2018-01-31 08:56:11,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-31 08:56:11,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2018-01-31 08:56:11,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:56:11,050 INFO L225 Difference]: With dead ends: 150 [2018-01-31 08:56:11,050 INFO L226 Difference]: Without dead ends: 88 [2018-01-31 08:56:11,051 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-31 08:56:11,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-01-31 08:56:11,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 83. [2018-01-31 08:56:11,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-01-31 08:56:11,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2018-01-31 08:56:11,056 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 83 [2018-01-31 08:56:11,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:56:11,056 INFO L432 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2018-01-31 08:56:11,056 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-31 08:56:11,056 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2018-01-31 08:56:11,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-01-31 08:56:11,058 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:56:11,058 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:56:11,058 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0AssertViolation]=== [2018-01-31 08:56:11,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1465441618, now seen corresponding path program 1 times [2018-01-31 08:56:11,058 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:56:11,058 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:56:11,059 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:11,059 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:56:11,059 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:56:11,069 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 08:56:11,093 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2018-01-31 08:56:11,093 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-31 08:56:11,093 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-31 08:56:11,097 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:56:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:56:11,130 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 08:56:11,180 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-01-31 08:56:11,196 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 08:56:11,197 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-31 08:56:11,197 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-31 08:56:11,197 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-31 08:56:11,197 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-31 08:56:11,197 INFO L87 Difference]: Start difference. First operand 83 states and 89 transitions. Second operand 3 states. [2018-01-31 08:56:11,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:56:11,259 INFO L93 Difference]: Finished difference Result 151 states and 169 transitions. [2018-01-31 08:56:11,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-31 08:56:11,260 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2018-01-31 08:56:11,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:56:11,263 INFO L225 Difference]: With dead ends: 151 [2018-01-31 08:56:11,263 INFO L226 Difference]: Without dead ends: 96 [2018-01-31 08:56:11,264 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-31 08:56:11,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-01-31 08:56:11,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 90. [2018-01-31 08:56:11,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-01-31 08:56:11,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2018-01-31 08:56:11,269 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 91 [2018-01-31 08:56:11,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:56:11,269 INFO L432 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2018-01-31 08:56:11,270 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-31 08:56:11,270 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2018-01-31 08:56:11,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-01-31 08:56:11,271 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:56:11,271 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:56:11,271 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0AssertViolation]=== [2018-01-31 08:56:11,271 INFO L82 PathProgramCache]: Analyzing trace with hash 280349970, now seen corresponding path program 1 times [2018-01-31 08:56:11,271 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:56:11,271 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:56:11,272 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:11,272 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:56:11,272 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:56:11,279 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 08:56:11,342 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-01-31 08:56:11,343 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-31 08:56:11,343 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-31 08:56:11,357 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:56:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:56:11,386 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 08:56:11,485 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-01-31 08:56:11,501 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-31 08:56:11,501 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2018-01-31 08:56:11,502 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-31 08:56:11,502 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-31 08:56:11,502 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-01-31 08:56:11,502 INFO L87 Difference]: Start difference. First operand 90 states and 98 transitions. Second operand 6 states. [2018-01-31 08:56:11,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:56:11,660 INFO L93 Difference]: Finished difference Result 177 states and 198 transitions. [2018-01-31 08:56:11,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-31 08:56:11,661 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2018-01-31 08:56:11,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:56:11,661 INFO L225 Difference]: With dead ends: 177 [2018-01-31 08:56:11,661 INFO L226 Difference]: Without dead ends: 108 [2018-01-31 08:56:11,662 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-01-31 08:56:11,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-01-31 08:56:11,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 101. [2018-01-31 08:56:11,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-01-31 08:56:11,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 109 transitions. [2018-01-31 08:56:11,667 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 109 transitions. Word has length 91 [2018-01-31 08:56:11,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:56:11,667 INFO L432 AbstractCegarLoop]: Abstraction has 101 states and 109 transitions. [2018-01-31 08:56:11,667 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-31 08:56:11,667 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 109 transitions. [2018-01-31 08:56:11,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-01-31 08:56:11,671 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:56:11,671 INFO L351 BasicCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:56:11,671 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0AssertViolation]=== [2018-01-31 08:56:11,671 INFO L82 PathProgramCache]: Analyzing trace with hash -253115437, now seen corresponding path program 1 times [2018-01-31 08:56:11,671 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:56:11,671 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:56:11,672 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:11,672 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:56:11,672 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:56:11,680 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 08:56:11,751 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-01-31 08:56:11,751 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-31 08:56:11,751 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-31 08:56:11,755 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:56:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:56:11,783 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 08:56:11,891 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-01-31 08:56:11,909 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-31 08:56:11,909 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2018-01-31 08:56:11,909 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-31 08:56:11,910 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-31 08:56:11,910 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-01-31 08:56:11,910 INFO L87 Difference]: Start difference. First operand 101 states and 109 transitions. Second operand 6 states. [2018-01-31 08:56:12,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:56:12,014 INFO L93 Difference]: Finished difference Result 181 states and 201 transitions. [2018-01-31 08:56:12,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-31 08:56:12,015 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2018-01-31 08:56:12,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:56:12,015 INFO L225 Difference]: With dead ends: 181 [2018-01-31 08:56:12,016 INFO L226 Difference]: Without dead ends: 116 [2018-01-31 08:56:12,016 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-01-31 08:56:12,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-01-31 08:56:12,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 109. [2018-01-31 08:56:12,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-01-31 08:56:12,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 117 transitions. [2018-01-31 08:56:12,020 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 117 transitions. Word has length 117 [2018-01-31 08:56:12,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:56:12,021 INFO L432 AbstractCegarLoop]: Abstraction has 109 states and 117 transitions. [2018-01-31 08:56:12,021 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-31 08:56:12,021 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 117 transitions. [2018-01-31 08:56:12,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-01-31 08:56:12,022 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:56:12,022 INFO L351 BasicCegarLoop]: trace histogram [9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:56:12,022 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0AssertViolation]=== [2018-01-31 08:56:12,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1180114590, now seen corresponding path program 1 times [2018-01-31 08:56:12,022 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:56:12,022 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:56:12,023 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:12,023 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:56:12,023 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:56:12,035 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 08:56:12,112 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2018-01-31 08:56:12,113 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-31 08:56:12,113 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-01-31 08:56:12,121 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-31 08:56:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:56:12,157 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 08:56:12,434 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2018-01-31 08:56:12,451 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-31 08:56:12,451 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2018-01-31 08:56:12,451 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-31 08:56:12,452 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-31 08:56:12,452 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-01-31 08:56:12,452 INFO L87 Difference]: Start difference. First operand 109 states and 117 transitions. Second operand 10 states. [2018-01-31 08:56:12,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:56:12,677 INFO L93 Difference]: Finished difference Result 215 states and 232 transitions. [2018-01-31 08:56:12,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-31 08:56:12,677 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 143 [2018-01-31 08:56:12,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:56:12,678 INFO L225 Difference]: With dead ends: 215 [2018-01-31 08:56:12,678 INFO L226 Difference]: Without dead ends: 135 [2018-01-31 08:56:12,679 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-01-31 08:56:12,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-01-31 08:56:12,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 125. [2018-01-31 08:56:12,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-01-31 08:56:12,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 133 transitions. [2018-01-31 08:56:12,683 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 133 transitions. Word has length 143 [2018-01-31 08:56:12,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:56:12,684 INFO L432 AbstractCegarLoop]: Abstraction has 125 states and 133 transitions. [2018-01-31 08:56:12,684 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-31 08:56:12,684 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 133 transitions. [2018-01-31 08:56:12,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-01-31 08:56:12,685 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:56:12,685 INFO L351 BasicCegarLoop]: trace histogram [9, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:56:12,685 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr0AssertViolation]=== [2018-01-31 08:56:12,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1412228734, now seen corresponding path program 2 times [2018-01-31 08:56:12,686 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:56:12,686 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:56:12,686 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:12,686 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:56:12,686 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:56:12,701 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 08:56:12,834 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2018-01-31 08:56:12,835 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 08:56:12,835 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-31 08:56:12,835 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-31 08:56:12,835 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-31 08:56:12,835 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-01-31 08:56:12,835 INFO L87 Difference]: Start difference. First operand 125 states and 133 transitions. Second operand 9 states. [2018-01-31 08:56:12,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:56:12,965 INFO L93 Difference]: Finished difference Result 210 states and 225 transitions. [2018-01-31 08:56:12,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-31 08:56:12,965 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 159 [2018-01-31 08:56:12,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:56:12,966 INFO L225 Difference]: With dead ends: 210 [2018-01-31 08:56:12,966 INFO L226 Difference]: Without dead ends: 204 [2018-01-31 08:56:12,967 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-01-31 08:56:12,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2018-01-31 08:56:12,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 165. [2018-01-31 08:56:12,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-01-31 08:56:12,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 179 transitions. [2018-01-31 08:56:12,973 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 179 transitions. Word has length 159 [2018-01-31 08:56:12,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:56:12,974 INFO L432 AbstractCegarLoop]: Abstraction has 165 states and 179 transitions. [2018-01-31 08:56:12,974 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-31 08:56:12,974 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 179 transitions. [2018-01-31 08:56:12,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-01-31 08:56:12,975 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:56:12,975 INFO L351 BasicCegarLoop]: trace histogram [10, 7, 7, 7, 7, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:56:12,975 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr0AssertViolation]=== [2018-01-31 08:56:12,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1308538474, now seen corresponding path program 1 times [2018-01-31 08:56:12,975 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:56:12,975 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:56:12,976 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:12,976 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-31 08:56:12,976 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:12,982 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-31 08:56:12,983 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-31 08:56:12,983 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-31 08:56:12,991 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:56:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:56:13,013 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 08:56:13,110 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2018-01-31 08:56:13,126 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-01-31 08:56:13,126 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-01-31 08:56:13,127 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-31 08:56:13,127 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-31 08:56:13,127 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-01-31 08:56:13,127 INFO L87 Difference]: Start difference. First operand 165 states and 179 transitions. Second operand 9 states. [2018-01-31 08:56:13,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:56:13,222 INFO L93 Difference]: Finished difference Result 306 states and 334 transitions. [2018-01-31 08:56:13,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-31 08:56:13,222 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2018-01-31 08:56:13,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:56:13,223 INFO L225 Difference]: With dead ends: 306 [2018-01-31 08:56:13,223 INFO L226 Difference]: Without dead ends: 178 [2018-01-31 08:56:13,224 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2018-01-31 08:56:13,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-01-31 08:56:13,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 173. [2018-01-31 08:56:13,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-01-31 08:56:13,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 187 transitions. [2018-01-31 08:56:13,229 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 187 transitions. Word has length 169 [2018-01-31 08:56:13,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:56:13,229 INFO L432 AbstractCegarLoop]: Abstraction has 173 states and 187 transitions. [2018-01-31 08:56:13,230 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-31 08:56:13,230 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 187 transitions. [2018-01-31 08:56:13,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-01-31 08:56:13,231 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:56:13,231 INFO L351 BasicCegarLoop]: trace histogram [10, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:56:13,231 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr0AssertViolation]=== [2018-01-31 08:56:13,231 INFO L82 PathProgramCache]: Analyzing trace with hash 977564863, now seen corresponding path program 2 times [2018-01-31 08:56:13,231 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:56:13,231 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:56:13,232 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:13,232 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:56:13,232 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:13,238 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-31 08:56:13,238 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-31 08:56:13,238 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-31 08:56:13,246 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-31 08:56:13,256 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-31 08:56:13,267 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-31 08:56:13,269 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-31 08:56:13,272 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 08:56:13,314 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2018-01-31 08:56:13,331 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-01-31 08:56:13,331 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-01-31 08:56:13,332 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-31 08:56:13,332 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-31 08:56:13,332 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-01-31 08:56:13,332 INFO L87 Difference]: Start difference. First operand 173 states and 187 transitions. Second operand 11 states. [2018-01-31 08:56:13,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:56:13,449 INFO L93 Difference]: Finished difference Result 309 states and 337 transitions. [2018-01-31 08:56:13,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-31 08:56:13,450 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 177 [2018-01-31 08:56:13,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:56:13,450 INFO L225 Difference]: With dead ends: 309 [2018-01-31 08:56:13,450 INFO L226 Difference]: Without dead ends: 181 [2018-01-31 08:56:13,451 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=123, Invalid=219, Unknown=0, NotChecked=0, Total=342 [2018-01-31 08:56:13,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-01-31 08:56:13,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2018-01-31 08:56:13,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-01-31 08:56:13,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 195 transitions. [2018-01-31 08:56:13,458 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 195 transitions. Word has length 177 [2018-01-31 08:56:13,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:56:13,458 INFO L432 AbstractCegarLoop]: Abstraction has 181 states and 195 transitions. [2018-01-31 08:56:13,458 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-31 08:56:13,458 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 195 transitions. [2018-01-31 08:56:13,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-01-31 08:56:13,459 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:56:13,459 INFO L351 BasicCegarLoop]: trace histogram [10, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:56:13,459 INFO L371 AbstractCegarLoop]: === Iteration 10 === [mainErr0AssertViolation]=== [2018-01-31 08:56:13,459 INFO L82 PathProgramCache]: Analyzing trace with hash 220358376, now seen corresponding path program 3 times [2018-01-31 08:56:13,460 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:56:13,460 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:56:13,461 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:13,461 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-31 08:56:13,461 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:13,467 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-31 08:56:13,467 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-31 08:56:13,467 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-31 08:56:13,477 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-01-31 08:56:13,487 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-31 08:56:13,490 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-31 08:56:13,491 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-31 08:56:13,493 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 08:56:13,523 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2018-01-31 08:56:13,539 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 08:56:13,539 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-31 08:56:13,540 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-31 08:56:13,540 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-31 08:56:13,540 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-01-31 08:56:13,540 INFO L87 Difference]: Start difference. First operand 181 states and 195 transitions. Second operand 5 states. [2018-01-31 08:56:13,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:56:13,583 INFO L93 Difference]: Finished difference Result 313 states and 349 transitions. [2018-01-31 08:56:13,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-31 08:56:13,583 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 185 [2018-01-31 08:56:13,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:56:13,584 INFO L225 Difference]: With dead ends: 313 [2018-01-31 08:56:13,584 INFO L226 Difference]: Without dead ends: 192 [2018-01-31 08:56:13,584 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-01-31 08:56:13,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2018-01-31 08:56:13,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 179. [2018-01-31 08:56:13,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-01-31 08:56:13,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 191 transitions. [2018-01-31 08:56:13,589 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 191 transitions. Word has length 185 [2018-01-31 08:56:13,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:56:13,590 INFO L432 AbstractCegarLoop]: Abstraction has 179 states and 191 transitions. [2018-01-31 08:56:13,590 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-31 08:56:13,590 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 191 transitions. [2018-01-31 08:56:13,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-01-31 08:56:13,591 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:56:13,591 INFO L351 BasicCegarLoop]: trace histogram [12, 9, 9, 9, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:56:13,591 INFO L371 AbstractCegarLoop]: === Iteration 11 === [mainErr0AssertViolation]=== [2018-01-31 08:56:13,591 INFO L82 PathProgramCache]: Analyzing trace with hash -908536472, now seen corresponding path program 1 times [2018-01-31 08:56:13,591 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:56:13,592 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:56:13,592 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:13,592 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-31 08:56:13,592 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:13,598 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-31 08:56:13,598 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-31 08:56:13,598 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-01-31 08:56:13,619 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-31 08:56:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:56:13,646 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 08:56:13,981 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 126 proven. 12 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2018-01-31 08:56:13,998 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-01-31 08:56:13,998 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-01-31 08:56:13,998 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-31 08:56:13,999 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-31 08:56:13,999 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-01-31 08:56:13,999 INFO L87 Difference]: Start difference. First operand 179 states and 191 transitions. Second operand 7 states. [2018-01-31 08:56:14,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:56:14,108 INFO L93 Difference]: Finished difference Result 304 states and 335 transitions. [2018-01-31 08:56:14,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-31 08:56:14,112 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 205 [2018-01-31 08:56:14,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:56:14,113 INFO L225 Difference]: With dead ends: 304 [2018-01-31 08:56:14,113 INFO L226 Difference]: Without dead ends: 185 [2018-01-31 08:56:14,113 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2018-01-31 08:56:14,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-01-31 08:56:14,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2018-01-31 08:56:14,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-01-31 08:56:14,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 197 transitions. [2018-01-31 08:56:14,117 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 197 transitions. Word has length 205 [2018-01-31 08:56:14,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:56:14,117 INFO L432 AbstractCegarLoop]: Abstraction has 185 states and 197 transitions. [2018-01-31 08:56:14,121 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-31 08:56:14,121 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 197 transitions. [2018-01-31 08:56:14,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-01-31 08:56:14,122 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:56:14,122 INFO L351 BasicCegarLoop]: trace histogram [15, 12, 12, 12, 12, 9, 6, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:56:14,122 INFO L371 AbstractCegarLoop]: === Iteration 12 === [mainErr0AssertViolation]=== [2018-01-31 08:56:14,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1743715584, now seen corresponding path program 2 times [2018-01-31 08:56:14,122 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:56:14,122 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:56:14,123 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:14,123 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:56:14,123 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:14,134 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-31 08:56:14,134 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-31 08:56:14,134 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-31 08:56:14,154 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-31 08:56:14,178 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-31 08:56:14,193 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-31 08:56:14,196 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-31 08:56:14,198 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 08:56:14,480 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 248 proven. 44 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2018-01-31 08:56:14,498 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-01-31 08:56:14,498 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-01-31 08:56:14,498 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-31 08:56:14,499 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-31 08:56:14,499 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-01-31 08:56:14,499 INFO L87 Difference]: Start difference. First operand 185 states and 197 transitions. Second operand 11 states. [2018-01-31 08:56:14,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:56:14,626 INFO L93 Difference]: Finished difference Result 320 states and 352 transitions. [2018-01-31 08:56:14,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-31 08:56:14,627 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 223 [2018-01-31 08:56:14,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:56:14,628 INFO L225 Difference]: With dead ends: 320 [2018-01-31 08:56:14,628 INFO L226 Difference]: Without dead ends: 195 [2018-01-31 08:56:14,629 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=219, Unknown=0, NotChecked=0, Total=342 [2018-01-31 08:56:14,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2018-01-31 08:56:14,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2018-01-31 08:56:14,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-01-31 08:56:14,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 208 transitions. [2018-01-31 08:56:14,633 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 208 transitions. Word has length 223 [2018-01-31 08:56:14,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:56:14,633 INFO L432 AbstractCegarLoop]: Abstraction has 195 states and 208 transitions. [2018-01-31 08:56:14,633 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-31 08:56:14,633 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 208 transitions. [2018-01-31 08:56:14,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-01-31 08:56:14,634 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:56:14,634 INFO L351 BasicCegarLoop]: trace histogram [18, 15, 15, 15, 15, 9, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:56:14,635 INFO L371 AbstractCegarLoop]: === Iteration 13 === [mainErr0AssertViolation]=== [2018-01-31 08:56:14,635 INFO L82 PathProgramCache]: Analyzing trace with hash 602127572, now seen corresponding path program 3 times [2018-01-31 08:56:14,635 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:56:14,635 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:56:14,635 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:14,636 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-31 08:56:14,636 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:14,642 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-31 08:56:14,643 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-31 08:56:14,643 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-31 08:56:14,667 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-01-31 08:56:14,679 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-31 08:56:14,685 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-31 08:56:14,703 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-31 08:56:14,719 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-31 08:56:14,720 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-31 08:56:14,723 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 08:56:14,759 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 396 proven. 12 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2018-01-31 08:56:14,778 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-01-31 08:56:14,778 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-01-31 08:56:14,778 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-31 08:56:14,778 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-31 08:56:14,778 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-01-31 08:56:14,779 INFO L87 Difference]: Start difference. First operand 195 states and 208 transitions. Second operand 7 states. [2018-01-31 08:56:14,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:56:14,970 INFO L93 Difference]: Finished difference Result 284 states and 303 transitions. [2018-01-31 08:56:14,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-31 08:56:14,971 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 253 [2018-01-31 08:56:14,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:56:14,972 INFO L225 Difference]: With dead ends: 284 [2018-01-31 08:56:14,972 INFO L226 Difference]: Without dead ends: 221 [2018-01-31 08:56:14,972 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2018-01-31 08:56:14,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-01-31 08:56:14,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 211. [2018-01-31 08:56:14,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2018-01-31 08:56:14,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 224 transitions. [2018-01-31 08:56:14,977 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 224 transitions. Word has length 253 [2018-01-31 08:56:14,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:56:14,977 INFO L432 AbstractCegarLoop]: Abstraction has 211 states and 224 transitions. [2018-01-31 08:56:14,977 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-31 08:56:14,977 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 224 transitions. [2018-01-31 08:56:14,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-01-31 08:56:14,978 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:56:14,978 INFO L351 BasicCegarLoop]: trace histogram [18, 15, 15, 15, 15, 9, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:56:14,978 INFO L371 AbstractCegarLoop]: === Iteration 14 === [mainErr0AssertViolation]=== [2018-01-31 08:56:14,978 INFO L82 PathProgramCache]: Analyzing trace with hash 141969611, now seen corresponding path program 4 times [2018-01-31 08:56:14,978 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:56:14,978 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:56:14,979 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:14,979 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-31 08:56:14,979 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:14,985 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-31 08:56:14,985 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-31 08:56:14,985 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-31 08:56:14,992 INFO L101 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-01-31 08:56:15,018 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-31 08:56:15,021 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 08:56:15,135 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 396 proven. 30 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2018-01-31 08:56:15,153 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-01-31 08:56:15,154 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-01-31 08:56:15,154 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-31 08:56:15,154 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-31 08:56:15,154 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-01-31 08:56:15,154 INFO L87 Difference]: Start difference. First operand 211 states and 224 transitions. Second operand 9 states. [2018-01-31 08:56:15,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:56:15,222 INFO L93 Difference]: Finished difference Result 290 states and 309 transitions. [2018-01-31 08:56:15,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-31 08:56:15,228 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 261 [2018-01-31 08:56:15,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:56:15,229 INFO L225 Difference]: With dead ends: 290 [2018-01-31 08:56:15,229 INFO L226 Difference]: Without dead ends: 227 [2018-01-31 08:56:15,230 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2018-01-31 08:56:15,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-01-31 08:56:15,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2018-01-31 08:56:15,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2018-01-31 08:56:15,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 240 transitions. [2018-01-31 08:56:15,235 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 240 transitions. Word has length 261 [2018-01-31 08:56:15,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:56:15,236 INFO L432 AbstractCegarLoop]: Abstraction has 227 states and 240 transitions. [2018-01-31 08:56:15,236 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-31 08:56:15,236 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 240 transitions. [2018-01-31 08:56:15,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2018-01-31 08:56:15,237 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:56:15,237 INFO L351 BasicCegarLoop]: trace histogram [18, 15, 15, 15, 15, 9, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:56:15,237 INFO L371 AbstractCegarLoop]: === Iteration 15 === [mainErr0AssertViolation]=== [2018-01-31 08:56:15,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1901391298, now seen corresponding path program 5 times [2018-01-31 08:56:15,237 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:56:15,237 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:56:15,238 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:15,238 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-31 08:56:15,238 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:56:15,244 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-31 08:56:15,244 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-31 08:56:15,244 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-31 08:56:15,254 INFO L101 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-01-31 08:56:15,262 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-31 08:56:15,263 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-31 08:56:15,265 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-31 08:56:15,269 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-31 08:56:15,273 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-31 08:56:15,279 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-31 08:56:15,326 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-31 08:56:15,386 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-31 08:56:15,428 INFO L239 tOrderPrioritization]: Conjunction of SSA is sat [2018-01-31 08:56:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-31 08:56:15,554 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-01-31 08:56:15,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 08:56:15 BoogieIcfgContainer [2018-01-31 08:56:15,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-31 08:56:15,621 INFO L168 Benchmark]: Toolchain (without parser) took 5809.42 ms. Allocated memory was 148.9 MB in the beginning and 307.8 MB in the end (delta: 158.9 MB). Free memory was 113.5 MB in the beginning and 182.2 MB in the end (delta: -68.7 MB). Peak memory consumption was 90.2 MB. Max. memory is 5.3 GB. [2018-01-31 08:56:15,622 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 148.9 MB. Free memory is still 118.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 08:56:15,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 131.23 ms. Allocated memory is still 148.9 MB. Free memory was 113.5 MB in the beginning and 104.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 5.3 GB. [2018-01-31 08:56:15,622 INFO L168 Benchmark]: Boogie Preprocessor took 19.35 ms. Allocated memory is still 148.9 MB. Free memory was 104.7 MB in the beginning and 102.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 5.3 GB. [2018-01-31 08:56:15,622 INFO L168 Benchmark]: RCFGBuilder took 510.43 ms. Allocated memory is still 148.9 MB. Free memory was 102.9 MB in the beginning and 83.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 5.3 GB. [2018-01-31 08:56:15,623 INFO L168 Benchmark]: TraceAbstraction took 5146.10 ms. Allocated memory was 148.9 MB in the beginning and 307.8 MB in the end (delta: 158.9 MB). Free memory was 82.6 MB in the beginning and 182.2 MB in the end (delta: -99.6 MB). Peak memory consumption was 59.2 MB. Max. memory is 5.3 GB. [2018-01-31 08:56:15,623 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 148.9 MB. Free memory is still 118.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 131.23 ms. Allocated memory is still 148.9 MB. Free memory was 113.5 MB in the beginning and 104.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 19.35 ms. Allocated memory is still 148.9 MB. Free memory was 104.7 MB in the beginning and 102.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 5.3 GB. * RCFGBuilder took 510.43 ms. Allocated memory is still 148.9 MB. Free memory was 102.9 MB in the beginning and 83.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 5146.10 ms. Allocated memory was 148.9 MB in the beginning and 307.8 MB in the end (delta: 158.9 MB). Free memory was 82.6 MB in the beginning and 182.2 MB in the end (delta: -99.6 MB). Peak memory consumption was 59.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 50]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L31] FCALL int x[5]; VAL [x={11:0}] [L32] CALL init_nondet(x) VAL [x={11:0}] [L5] int i; VAL [x={11:0}, x={11:0}] [L6] i = 0 VAL [i=0, x={11:0}, x={11:0}] [L6] COND TRUE i < 5 VAL [i=0, x={11:0}, x={11:0}] [L7] FCALL x[i] = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=-2147481361, i=0, x={11:0}, x={11:0}] [L6] i++ VAL [i=1, x={11:0}, x={11:0}] [L6] COND TRUE i < 5 VAL [i=1, x={11:0}, x={11:0}] [L7] FCALL x[i] = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=9486, i=1, x={11:0}, x={11:0}] [L6] i++ VAL [i=2, x={11:0}, x={11:0}] [L6] COND TRUE i < 5 VAL [i=2, x={11:0}, x={11:0}] [L7] FCALL x[i] = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=-2147481362, i=2, x={11:0}, x={11:0}] [L6] i++ VAL [i=3, x={11:0}, x={11:0}] [L6] COND TRUE i < 5 VAL [i=3, x={11:0}, x={11:0}] [L7] FCALL x[i] = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=-2147481363, i=3, x={11:0}, x={11:0}] [L6] i++ VAL [i=4, x={11:0}, x={11:0}] [L6] COND TRUE i < 5 VAL [i=4, x={11:0}, x={11:0}] [L7] FCALL x[i] = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=9486, i=4, x={11:0}, x={11:0}] [L6] i++ VAL [i=5, x={11:0}, x={11:0}] [L6] COND FALSE, RET !(i < 5) VAL [i=5, x={11:0}, x={11:0}] [L32] init_nondet(x) VAL [x={11:0}] [L33] int temp; VAL [x={11:0}] [L34] int ret; VAL [x={11:0}] [L35] int ret2; VAL [x={11:0}] [L36] int ret5; VAL [x={11:0}] [L38] CALL, EXPR rangesum(x) VAL [x={11:0}] [L13] int i; VAL [x={11:0}, x={11:0}] [L14] long long ret; VAL [x={11:0}, x={11:0}] [L15] ret = 0 VAL [ret=0, x={11:0}, x={11:0}] [L16] int cnt = 0; VAL [cnt=0, ret=0, x={11:0}, x={11:0}] [L17] i = 0 VAL [cnt=0, i=0, ret=0, x={11:0}, x={11:0}] [L17] COND TRUE i < 5 VAL [cnt=0, i=0, ret=0, x={11:0}, x={11:0}] [L18] COND FALSE !(i > 5/2) VAL [cnt=0, i=0, ret=0, x={11:0}, x={11:0}] [L17] i++ VAL [cnt=0, i=1, ret=0, x={11:0}, x={11:0}] [L17] COND TRUE i < 5 VAL [cnt=0, i=1, ret=0, x={11:0}, x={11:0}] [L18] COND FALSE !(i > 5/2) VAL [cnt=0, i=1, ret=0, x={11:0}, x={11:0}] [L17] i++ VAL [cnt=0, i=2, ret=0, x={11:0}, x={11:0}] [L17] COND TRUE i < 5 VAL [cnt=0, i=2, ret=0, x={11:0}, x={11:0}] [L18] COND FALSE !(i > 5/2) VAL [cnt=0, i=2, ret=0, x={11:0}, x={11:0}] [L17] i++ VAL [cnt=0, i=3, ret=0, x={11:0}, x={11:0}] [L17] COND TRUE i < 5 VAL [cnt=0, i=3, ret=0, x={11:0}, x={11:0}] [L18] COND TRUE i > 5/2 VAL [cnt=0, i=3, ret=0, x={11:0}, x={11:0}] [L19] EXPR, FCALL x[i] VAL [cnt=0, i=3, ret=0, x={11:0}, x={11:0}, x[i]=-2147481363] [L19] ret = ret + x[i] VAL [cnt=0, i=3, ret=-2147481363, x={11:0}, x={11:0}, x[i]=-2147481363] [L20] cnt = cnt + 1 VAL [cnt=1, i=3, ret=-2147481363, x={11:0}, x={11:0}] [L17] i++ VAL [cnt=1, i=4, ret=-2147481363, x={11:0}, x={11:0}] [L17] COND TRUE i < 5 VAL [cnt=1, i=4, ret=-2147481363, x={11:0}, x={11:0}] [L18] COND TRUE i > 5/2 VAL [cnt=1, i=4, ret=-2147481363, x={11:0}, x={11:0}] [L19] EXPR, FCALL x[i] VAL [cnt=1, i=4, ret=-2147481363, x={11:0}, x={11:0}, x[i]=9486] [L19] ret = ret + x[i] VAL [cnt=1, i=4, ret=-2147471877, x={11:0}, x={11:0}, x[i]=9486] [L20] cnt = cnt + 1 VAL [cnt=2, i=4, ret=-2147471877, x={11:0}, x={11:0}] [L17] i++ VAL [cnt=2, i=5, ret=-2147471877, x={11:0}, x={11:0}] [L17] COND FALSE !(i < 5) VAL [cnt=2, i=5, ret=-2147471877, x={11:0}, x={11:0}] [L23] COND TRUE cnt !=0 VAL [cnt=2, i=5, ret=-2147471877, x={11:0}, x={11:0}] [L24] RET return ret / cnt; VAL [\result=-1073735938, cnt=2, i=5, ret=-2147471877, x={11:0}, x={11:0}] [L38] EXPR rangesum(x) VAL [rangesum(x)=-1073735938, x={11:0}] [L38] ret = rangesum(x) VAL [rangesum(x)=-1073735938, ret=-1073735938, x={11:0}] [L40] EXPR, FCALL x[0] VAL [ret=-1073735938, x={11:0}, x[0]=-2147481361] [L40] temp=x[0] VAL [ret=-1073735938, temp=-2147481361, x={11:0}, x[0]=-2147481361] [L40] EXPR, FCALL x[1] VAL [ret=-1073735938, temp=-2147481361, x={11:0}, x[1]=9486] [L40] FCALL x[0] = x[1] VAL [ret=-1073735938, temp=-2147481361, x={11:0}, x[1]=9486] [L40] FCALL x[1] = temp VAL [ret=-1073735938, temp=-2147481361, x={11:0}] [L41] CALL, EXPR rangesum(x) VAL [x={11:0}] [L13] int i; VAL [x={11:0}, x={11:0}] [L14] long long ret; VAL [x={11:0}, x={11:0}] [L15] ret = 0 VAL [ret=0, x={11:0}, x={11:0}] [L16] int cnt = 0; VAL [cnt=0, ret=0, x={11:0}, x={11:0}] [L17] i = 0 VAL [cnt=0, i=0, ret=0, x={11:0}, x={11:0}] [L17] COND TRUE i < 5 VAL [cnt=0, i=0, ret=0, x={11:0}, x={11:0}] [L18] COND FALSE !(i > 5/2) VAL [cnt=0, i=0, ret=0, x={11:0}, x={11:0}] [L17] i++ VAL [cnt=0, i=1, ret=0, x={11:0}, x={11:0}] [L17] COND TRUE i < 5 VAL [cnt=0, i=1, ret=0, x={11:0}, x={11:0}] [L18] COND FALSE !(i > 5/2) VAL [cnt=0, i=1, ret=0, x={11:0}, x={11:0}] [L17] i++ VAL [cnt=0, i=2, ret=0, x={11:0}, x={11:0}] [L17] COND TRUE i < 5 VAL [cnt=0, i=2, ret=0, x={11:0}, x={11:0}] [L18] COND FALSE !(i > 5/2) VAL [cnt=0, i=2, ret=0, x={11:0}, x={11:0}] [L17] i++ VAL [cnt=0, i=3, ret=0, x={11:0}, x={11:0}] [L17] COND TRUE i < 5 VAL [cnt=0, i=3, ret=0, x={11:0}, x={11:0}] [L18] COND TRUE i > 5/2 VAL [cnt=0, i=3, ret=0, x={11:0}, x={11:0}] [L19] EXPR, FCALL x[i] VAL [cnt=0, i=3, ret=0, x={11:0}, x={11:0}, x[i]=-2147481363] [L19] ret = ret + x[i] VAL [cnt=0, i=3, ret=-2147481363, x={11:0}, x={11:0}, x[i]=-2147481363] [L20] cnt = cnt + 1 VAL [cnt=1, i=3, ret=-2147481363, x={11:0}, x={11:0}] [L17] i++ VAL [cnt=1, i=4, ret=-2147481363, x={11:0}, x={11:0}] [L17] COND TRUE i < 5 VAL [cnt=1, i=4, ret=-2147481363, x={11:0}, x={11:0}] [L18] COND TRUE i > 5/2 VAL [cnt=1, i=4, ret=-2147481363, x={11:0}, x={11:0}] [L19] EXPR, FCALL x[i] VAL [cnt=1, i=4, ret=-2147481363, x={11:0}, x={11:0}, x[i]=9486] [L19] ret = ret + x[i] VAL [cnt=1, i=4, ret=-2147471877, x={11:0}, x={11:0}, x[i]=9486] [L20] cnt = cnt + 1 VAL [cnt=2, i=4, ret=-2147471877, x={11:0}, x={11:0}] [L17] i++ VAL [cnt=2, i=5, ret=-2147471877, x={11:0}, x={11:0}] [L17] COND FALSE !(i < 5) VAL [cnt=2, i=5, ret=-2147471877, x={11:0}, x={11:0}] [L23] COND TRUE cnt !=0 VAL [cnt=2, i=5, ret=-2147471877, x={11:0}, x={11:0}] [L24] RET return ret / cnt; VAL [\result=-1073735938, cnt=2, i=5, ret=-2147471877, x={11:0}, x={11:0}] [L41] EXPR rangesum(x) VAL [rangesum(x)=-1073735938, ret=-1073735938, temp=-2147481361, x={11:0}] [L41] ret2 = rangesum(x) VAL [rangesum(x)=-1073735938, ret=-1073735938, ret2=-1073735938, temp=-2147481361, x={11:0}] [L42] EXPR, FCALL x[0] VAL [ret=-1073735938, ret2=-1073735938, temp=-2147481361, x={11:0}, x[0]=9486] [L42] temp=x[0] VAL [ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}, x[0]=9486] [L43] int i =0 ; VAL [i=0, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}] [L43] COND TRUE i<5 -1 VAL [i=0, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}] [L44] EXPR, FCALL x[i+1] VAL [i=0, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}, x[i+1]=-2147481361] [L44] FCALL x[i] = x[i+1] VAL [i=0, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}, x[i+1]=-2147481361] [L43] i++ VAL [i=1, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}] [L43] COND TRUE i<5 -1 VAL [i=1, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}] [L44] EXPR, FCALL x[i+1] VAL [i=1, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}, x[i+1]=-2147481362] [L44] FCALL x[i] = x[i+1] VAL [i=1, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}, x[i+1]=-2147481362] [L43] i++ VAL [i=2, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}] [L43] COND TRUE i<5 -1 VAL [i=2, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}] [L44] EXPR, FCALL x[i+1] VAL [i=2, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}, x[i+1]=-2147481363] [L44] FCALL x[i] = x[i+1] VAL [i=2, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}, x[i+1]=-2147481363] [L43] i++ VAL [i=3, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}] [L43] COND TRUE i<5 -1 VAL [i=3, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}] [L44] EXPR, FCALL x[i+1] VAL [i=3, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}, x[i+1]=9486] [L44] FCALL x[i] = x[i+1] VAL [i=3, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}, x[i+1]=9486] [L43] i++ VAL [i=4, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}] [L43] COND FALSE !(i<5 -1) VAL [i=4, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}] [L46] FCALL x[5 -1] = temp VAL [i=4, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}] [L47] CALL, EXPR rangesum(x) VAL [x={11:0}] [L13] int i; VAL [x={11:0}, x={11:0}] [L14] long long ret; VAL [x={11:0}, x={11:0}] [L15] ret = 0 VAL [ret=0, x={11:0}, x={11:0}] [L16] int cnt = 0; VAL [cnt=0, ret=0, x={11:0}, x={11:0}] [L17] i = 0 VAL [cnt=0, i=0, ret=0, x={11:0}, x={11:0}] [L17] COND TRUE i < 5 VAL [cnt=0, i=0, ret=0, x={11:0}, x={11:0}] [L18] COND FALSE !(i > 5/2) VAL [cnt=0, i=0, ret=0, x={11:0}, x={11:0}] [L17] i++ VAL [cnt=0, i=1, ret=0, x={11:0}, x={11:0}] [L17] COND TRUE i < 5 VAL [cnt=0, i=1, ret=0, x={11:0}, x={11:0}] [L18] COND FALSE !(i > 5/2) VAL [cnt=0, i=1, ret=0, x={11:0}, x={11:0}] [L17] i++ VAL [cnt=0, i=2, ret=0, x={11:0}, x={11:0}] [L17] COND TRUE i < 5 VAL [cnt=0, i=2, ret=0, x={11:0}, x={11:0}] [L18] COND FALSE !(i > 5/2) VAL [cnt=0, i=2, ret=0, x={11:0}, x={11:0}] [L17] i++ VAL [cnt=0, i=3, ret=0, x={11:0}, x={11:0}] [L17] COND TRUE i < 5 VAL [cnt=0, i=3, ret=0, x={11:0}, x={11:0}] [L18] COND TRUE i > 5/2 VAL [cnt=0, i=3, ret=0, x={11:0}, x={11:0}] [L19] EXPR, FCALL x[i] VAL [cnt=0, i=3, ret=0, x={11:0}, x={11:0}, x[i]=9486] [L19] ret = ret + x[i] VAL [cnt=0, i=3, ret=9486, x={11:0}, x={11:0}, x[i]=9486] [L20] cnt = cnt + 1 VAL [cnt=1, i=3, ret=9486, x={11:0}, x={11:0}] [L17] i++ VAL [cnt=1, i=4, ret=9486, x={11:0}, x={11:0}] [L17] COND TRUE i < 5 VAL [cnt=1, i=4, ret=9486, x={11:0}, x={11:0}] [L18] COND TRUE i > 5/2 VAL [cnt=1, i=4, ret=9486, x={11:0}, x={11:0}] [L19] EXPR, FCALL x[i] VAL [cnt=1, i=4, ret=9486, x={11:0}, x={11:0}, x[i]=9486] [L19] ret = ret + x[i] VAL [cnt=1, i=4, ret=18972, x={11:0}, x={11:0}, x[i]=9486] [L20] cnt = cnt + 1 VAL [cnt=2, i=4, ret=18972, x={11:0}, x={11:0}] [L17] i++ VAL [cnt=2, i=5, ret=18972, x={11:0}, x={11:0}] [L17] COND FALSE !(i < 5) VAL [cnt=2, i=5, ret=18972, x={11:0}, x={11:0}] [L23] COND TRUE cnt !=0 VAL [cnt=2, i=5, ret=18972, x={11:0}, x={11:0}] [L24] RET return ret / cnt; VAL [\result=9486, cnt=2, i=5, ret=18972, x={11:0}, x={11:0}] [L47] EXPR rangesum(x) VAL [i=4, rangesum(x)=9486, ret=-1073735938, ret2=-1073735938, temp=9486, x={11:0}] [L47] ret5 = rangesum(x) VAL [i=4, rangesum(x)=9486, ret=-1073735938, ret2=-1073735938, ret5=9486, temp=9486, x={11:0}] [L49] COND TRUE ret != ret2 || ret !=ret5 VAL [i=4, ret=-1073735938, ret2=-1073735938, ret5=9486, temp=9486, x={11:0}] [L50] __VERIFIER_error() VAL [i=4, ret=-1073735938, ret2=-1073735938, ret5=9486, temp=9486, x={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 88 locations, 1 error locations. UNSAFE Result, 5.1s OverallTime, 15 OverallIterations, 18 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1183 SDtfs, 250 SDslu, 4346 SDs, 0 SdLazy, 545 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2142 GetRequests, 2017 SyntacticMatches, 2 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=227occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 14 MinimizatonAttempts, 102 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 3107 NumberOfCodeBlocks, 2909 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 2569 ConstructedInterpolants, 0 QuantifiedInterpolants, 557033 SizeOfPredicates, 53 NumberOfNonLiveVariables, 3316 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 17 InterpolantComputations, 7 PerfectInterpolantSequences, 4383/4617 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/rangesum05_false-unreach-call_true-termination.i_svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-31_08-56-15-627.csv Written .csv to /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/rangesum05_false-unreach-call_true-termination.i_svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-31_08-56-15-627.csv Received shutdown request...